Concentrator for solutions.



PATENTED DEC. 13, 1904.

J. U. LLOYD.

GONGENTRATOR FOR SOLUTIONS.

APPLICATION FILED JAN 7. 1904.

N0 MODEL.

i: a c 0 5 L47 7 I M M T? g T w a w l c E H;

hrveufoz "UNITED STATES Patented December 13,

PAT NT OFFICE.

Josu -uni LLOYD, OF uoswoon, OHIO.

I CONCENTBATOR FOR SOLUTIONS.

SPECIFIGATIOItT forming part of Letters Patent No. 777,115, dated December 13, 1904.

Application filed January 7, 1904- To (LZZ whom it'may cbncern:

Be it known that I, JOHN URI LLOYD, a citizen of the United States of America, and a resident of Norwood, in the county of Hamilton 5 and State of-Ohio, have invented certain new "and useful Improvements inConcentrat-ors for Solutions, of which the following is a specification;

The object'of my invention is an apparatus 1 for making-solutions, such as extracts and abstr'acts, whereby the substance held in sol'u; tion is not changed: by heat, by which the strength of, the solution may be changed readily to suit thecase, in which the alcohol or. other menstruum used to assist in getting the solution may be finally separated therefrom and be used over andover again, and in which the menstruum remaining in the waste may be recovered readily for use again.

In the. accompanying drawings, in' which like parts are indicated by similarreferenceletters wherever they occur throughout the variousviews, is illustrated an apparatus embodying-my invention. g I

F'gure l 's avertical sectional View of an apparatus embodying my invention, the con- & necting-pipes being shown ineleva'tion. Fig. 2 is a plan view of the same upon a slightlyreduced scale, taken. upon line 'a: a: of Fig. 1."

' 3 Fig. 3 is a sectional view taken upon line 4) 2;

of Fig. 1 upon a somewhat enlarged scale. Referring to the parts,-the. steeping-tanks A, A, and A are to receive the alcoholic'or other appropriate liquid and the herbs or whatever material of which it may be desired to make an extract or abstract. 'Each of the .tanks A, A, and A is co'nnectedbjv a br anch ,pipea with a pipe at, which leads into a con .1 centrating-tank B. Pipe a has a branch pipe.

4' a, which leads into thetank B at a point higher than "the pipe or; Both pipes at and branch 6& have stop-cocks a a located in them. The concentrating-tank B has withiriiit an upper anda lower heating-coil G 0, both of which are connected to steam-pipes 0 c, the communication between the pipes and the coils being controlled bystop-cocks c 0 of, and 0 Below the heating-coilsare water-coils G, through which cold Water circulatesto'keep 5 the liquid beneath cool Upon the" sides of j tanks A or A in the latter of'which asteep- Serial No. 188,000. (No model.)

plied with a cooling fluid through a pipe 0, the

exit for the fluid being through a pipe e. 5 5 Each of the steeping-tanks A, A, and A has an enlarged pipe. (Z leading out of. its top and communicating with a pipe d, which itself communicates with the pipe D by means of a'branch' pipe 0?. The tops of the steeping-tanks likewise have small pipes e communicatingwith a .pipe a whichitself' connects with the condensor E by means of a pipe 6". In the pipe e? arelocated stop-cocks ate, and e. In the pipes d are located stopcocksv d ol, and d Communication between the tank B and the condenser is regulated by a stop-cock d. i

Upon the side of the tank. B is a pipe 6, having located in it a stop-cock b 'and at its upper end a funnel b. I e In operation it is supposed that herbs or drugs have been placed in the tank A and that an alcoholic solution has been placed'upon the same and the steeping process has been carried on the length of time-desired. The cock a is opened and the fluid flows from the steeping-tank to the same level. Then cocks a and 0 are opened and steam passes into the-- heating-coil G, the cocks c and 0 being closed, 30 and the heat of the coil 0 drives oif the alcohol contained in the surface of the liquid in i the tank and the vapors rise to the top thereof and pass thence into the-pipeD and into the condenser, where they are liquefied and pass into the pipe efi-whence. they flow into .the pipe c 'and may beeither returned to tank A or by opening cocks e or e be admitted to ing process may-be going on, By thus heatingthe contentsof the concentrator B at its surface the body-thereof is not afl'ectedby the heat, and therefore the substance, such as delicate herbs, &c., is not. deteriorated thereby. To, obtaiu'as strong a product as may be desired, as the contnts in 'the concentrator lower fresh sutpplies of the solution are, broughti to it fromth'e steeping-tank. The" placing waterf'coils immediately below the heating; oils. enhances'the effect of keeping I00 .5 turn-pipes, substantiallyas' shown and dethe body of the solution cool While causing evaporation from the surface. The cold extract in concentrating-tank B is thus concentrated. Should it be desired to secure a more concentrated extract, the cocks c 0 may :be

Y opened to allow the steam to pass into the heating-coil G, whereby the liquid in the concentrating-tank may be quickly diminished,

the vapors passing, as before, into the condenser and thence into the steeping-tanks.

-- By opening cock at all of the fluid in the tank A may be conveyed into the concentrating-tank B. After the extract in the tank B has been .Y IS

brought to the strength desired it may be drawn 011' from the tank through pipe 6? by opening cock 6. When the material in the tankfor instance, A'-has been thoroughly worked, by closing off cocksa a and opening cock 0 steam may be passed through the waste material in the tank, taking up the alcohol that remains therein, and the vaporspass up through pipe d, cock d being open, and into the pipe d, thence through pipes 61 and D, into the condenser, where the liquid is condensed and conveyed back into pipe c to be used in one of' the tanks A-or A in which a steeping process may be going on.

The pipe 12 and funnel 6* are used for placing fluid in the concentrating-tank for diluting the extract to bring it to the exact strength desired.

1 have shown two heating-coils located-in the concentrating-tank; but it is obvious that more might be placed therein'and be coupled independently to the steam-pipes, if desired. What I claim is 1. A concentrator for solutions consisting i of a tank, a'heating-coil therein, a coolingcoil beneath the heating-coil and means for 4 admitting'a heating'medium to the heatingcoil and a cooling medium to the cooling-coil simultaneously.

2. The combination of a series of steepingtanks, concentratingtank, pipes connecting the series'with the-concentrating-tank and cocks for controlling the connections, a condenser, a vapor-pipe leading fromgthe con} centrating-tank into the condenser, returnpipes leading from the condenser into the steeping-tanks and cocks located in the rescribed. p

3. The combination of a steeping-tank, a. concentrating tank, a series of coils, one

steam-pipes, independent means for connectmg each of the series ofv the heating-coils with the steam-pipes and means for regulating the communication between the steamplpes and the coils, substantially as shown and described.

5. The combination of aseries of's'teepingtanks, a concentra'lingtank, pipes connecting the serles with the concentrating-tank, and cocks-for controlling the connections,

. heating-coils in the concentratingrtank, a

condenser, a Vapor-pipe connecting the concentratingtank and the condenser, pipes leading from the condenser into the steepingtanks and cooks located in said pipes to con- ,trol the communicationbetween the condenser and the steeping-tanks.

6. The combination of a series of steeping tanks, a concentrating-tank, pipes connecting the concentrating tank with the steepingtanks, a condensenrvapor-pip es connecting the steeping tanks with the condenser and fluid-pipes leading from the condenser back to the steeping-tanks and steam-pipes leading into each of the steeping-tanks, substantially as shown and described.

' '7. The combination of a series of steepingtanks, aconcentrating-tank, a condenser, heating-coils located in the concentrating-tank,

pipes connecting the steeping-tanks and the concentrating tank, vapor-pipes connecting the concentrating tank with the condenser and the steeping-tanks'with the condenser, return-pipes from the condenser into the steeping-tanks, cocks located in the return-pipes and steam-pipes for'th coils and for the steeping-tanks substantially asshown and de scribed.

I I JOHN-URI LLOYD.

Witnesses: W. L. ROOT,

GEO, J. MURRAY.

IOO 

